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1Number of Ways to Make Amountmedium
Based onLeetCode
mediumNeetCode 150
Coin Change II
This problem is a state-machine in disguise, and DP is how you keep it under control. Interviewers love it because it reveals your state-and-transition thinking and your edge-case discipline. The trap is picking a state that's too vague; keep it minimal and consistent.
Arrays & HashingDynamic Programming
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👨💼
Meet Allison & Tim
Your AI coaches
Practice coding interviews out loud with real-time voice coaching. Your code actually runs.
Free · No sign up · Early access
1Number of Ways to Make Amountmedium
Based onLeetCode
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